Australian Energy Market Operator

AEMO operates Australia's National Electricity Market (NEM), the interconnected power system in Australia’s eastern and south-eastern seaboard, and the Wholesale Electricity Market (WEM) and power system in Western Australia.

AEMO operates gas retail markets in New South Wales and the Australian Capital Territory, Queensland, South Australia, Victoria, and Western Australia. AEMO also operates wholesale gas markets in south-eastern Australia, those being the Declared Wholesale Gas Market in Victoria (DWGM), the Short Term Trading Market in Adelaide, Brisbane and Sydney (STTM), and the Gas Supply Hub (GSH), whose trading locations are based at Wallumbilla in Queensland, and Moomba in South Australia. AEMO also operates the Natural Gas Services Bulletin Board (GBB), and is system operator of the Victorian Gas Declared Transmission System. AEMO is also responsible for Gas Services Information functions in Western Australia.

The CATS and WIGS procedures apply to registered participants in accordance with the National Electricity Rules (the Rules). They form part of the MSATS procedures mentioned in the Rules clause 7.2.8. The CATS procedures are applicable to NMI (National Metering Identifier) small and large classifications, and the WIGS procedures are applicable to NMI classifications wholesale, interconnector, generator, and sample.

The NEM Retailer of Last Resort (RoLR) Processes define the processes that participants and AEMO are required to follow in order to effectively manage market transactions and communicate customer and site information should a RoLR event be invoked within the NEM.

This document provides a detailed description of the data items populated in the MSATS NMI Standing Data tables. The document contains information on the type of data, a brief description of that data item, and whether the information is mandatory. It is intended as a reference guide to assist participant's building systems and processes to interact with the MSATS system and understand the data.

Information regarding the use of the MSATS system is detailed in the following guides. These guides outline the steps involved in using the Ombudsman Enquiry System and the MSATS Web Portal, including Consumer Administration Transfer Solution (CATS), and Metering Data Management (MDM).

The B2B Validation Module is a validation application participants can embed in their B2B systems allowing them to validate an XML file before it is deployed to the MSATS B2B Web Portal. Download the latest and previous software and guide below.

This is a detailed technical guide that has been based on the operational experience gained in MSATS to date. It provides hints and tips on how to ensure that requests are successfully loaded into MSATS, and NMI Discovery and other reports, as well as outlining MSATS validations.

AEMO receives a large number of enquires about how MSATS handles the history of consumer transfers and standing data.

This document is a detailed description of how the MSATS data model is used to manage information that changes over time. It is essential reading, targeted at business analysts and IT support staff in participant business who are involved in managing data interfaces to and from MSATS.